| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Auld, Anna R (13)
|
FGECAC |
18:04.13 |
17:11.86 |
-52.27 |
| 2 |
Barczyk, Jillian G (16)
|
LACOLA |
18:24.94 |
17:36.79 |
-48.15 |
| 3 |
Neri, Christina N (16)
|
FLPYP |
18:26.72 |
17:47.54 |
-39.18 |
| 4 |
Story, Shaye N (14)
|
HIKSC |
18:23.94 |
18:03.81 |
-20.13 |
| 5 |
Yasumi, Mari (16)
|
HIKSC |
18:24.00 |
18:05.18 |
-18.82 |
| 6 |
Trieschmann, Emily A (13)
|
FGSAS |
17:43.98 |
18:12.29 |
28.31 |
| 7 |
Langius, Phoebe M (15)
|
FLUN-5 |
18:02.58 |
18:12.82 |
10.24 |
| 8 |
O'Gorman, April A (17)
|
FLDBS |
17:49.41 |
18:26.61 |
37.20 |
| 9 |
Miller, Aimee R (17)
|
LACOLA |
18:24.47 |
18:31.66 |
7.19 |
| 10 |
Walton, Mariah S (15)
|
HIKSC |
18:52.72 |
18:32.73 |
-19.99 |
| 11 |
Van Den Berg, Andrea C (18)
|
FGAZFL |
18:42.08 |
18:42.97 |
0.89 |
| 12 |
Bliss, Ashton L (17)
|
HIKSC |
18:03.79 |
18:48.74 |
44.95 |
|
Petrides, Maia A (18)
|
HIKSC |
17:59.05 |
19:04.53 |
65.48 |
|
Reynolds, Grayson H (18)
|
KYRACE |
18:56.60 |
19:30.90 |
34.30 |
|
Starman, Sidney M (15)
|
FGFFSC |
18:28.03 |
NS |
- |